HomeAD libraryAD 90-26-08Airworthiness Directive · Amendment 39-6831 · The Boeing Company AirplanesAD 90-26-08The Boeing Company AirplanesAirplanePublishedDecember 26, 1990EffectiveDecember 26, 1990MakerThe Boeing CompanySupersedesNothingApplies toThis AD applies to The Boeing Company 747-400 Series.The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.Official sourcesThe AD at the FAA · its text as the FAA keeps itFAA Dynamic Regulatory System (DRS) · search 90-26-08 for its current status and any corrections